138 MEGALOMASTOMA $. 4. 
Pfr. Mon. p. 133 (non Gould) —  Farcimen sectilabrum Gray. — 
Megalomastoma .Lowei Sow. 'Thes. IIT. 1864. t. 263. f. 1. — Pütel 
Cat. p. 120. — Ins. Labuan, Borneo. 
25. ? M. Leferi (Cyclostoma) Morelet. 7 
»,l. subperforata, pyramüdata, tenuis, striatula, nitida, 
sericea, castaneo-rubella; spira turrita, apice truncatula; anfr. 
superst. D convexiusculi, ultimus basi rotundatus, antice le- 
viter planatus; apertura rotundo-campanulata, concolor; peri- 
stoma duplex: internum continuum, expansum, repandum; ex- 
ternum superne lateraliter et breviter dilatatum. — Operculum 
tenue, planulatum, corneo-lutescens; spira subindistincta, nucleo 
central. — Long. 21, diam. 9 mill.* (M.) 
Cyclostoma .Leferi .Morelet in Journ. Conch. IX. 1861. p. 176. 
Megalomastoma Leferi Mart. Ostas. Zool. II. p. 154. 
Habitat in insula Borneo (Lefer de Lamothe). 
Obs. Issel (Moll. Born. p. 67) synonymum Jf. anostomatis laudat. 
26. M. Doriae Issel. 1 
.lesta perforata, oblongo-pupaeformis, persolida, irregu- 
lariter oblique striata, parum nitida, castanea; spira subturrita; 
anfractus 8 convexi, sutura profunda separati, ultimus prope 
aperturam ascendens, juxta perforationem subcompressus; aper- 
tura fere verticalis, subeircularis, in fauce castanea; peristoma 
sordide albescens, late expansum, reflexum, duplicatum: ex- 
ternum breviter interruptum, internum continuum. Operculum 
corneum, planum, concentrice costulatum. — Long. 30, diam. 
12; apert. incl perist. 12, excl. 8, lat. incl. perist. 111/, excl. 
«3n, * (T.) 
Megalomastoma Doriae Issel Moll. Born. 1874. p. 67. t. 6. f. 18. 19. 
Habitat in territorio Sarawak, Borneo (Doria, Beccari). 
Obs. ,Facile distinguitur a M. Anostoma testa crassa, solida, obscurius 
colorata, minus transparente et peristomate albido, margine externo late in- 
terrupto.* 
* 
27. funiculatum (Cyelostoma) Bens. (Coll. 19.) I. 133. II. 85. III. 
87. Pütel Cat. p. 120. —  Coptocheilus funiculatus Gould. — 
Himalaya. 
28. pauperculum (Cyclostoma) Sow. I. 134. II. 86. III. 87. — 
Coptocheilus pauperculus Gould. — Himalaya. 
* * 
